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access icon free Thermodynamic calculations of the Mn–Sn, Mn–Sr and Mg–Mn–{Sn, Sr} systems

Thermodynamic modelling of Mn–Sn and Mn–Sr binary systems is carried out using the reliable data from the literature. Thermodynamic properties of the binary liquid solutions are described using the modified quasi-chemical model. The calculated phase diagrams and the thermodynamic properties are found to be in good agreement with the experimental data from the literature. A self-consistent thermodynamic database for the Mg–Mn–{Sn, Sr} systems is constructed by combining the thermodynamic descriptions of their constituent binaries. The constructed database is used to calculate and predict liquidus projection and invariant reactions of these ternary systems. The Mg–Mn–Sr system has nine ternary eutectic reactions, two saddle points and eleven crystallisation fields. Mg–Mn–Sn has four saddle points, two quasi-peritectic and six ternary eutectic reactions.

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